Well pumping device



Sept. 7, 1943. s. w. MILLER ET AL WELL PUMPING DEVICE Filed May 20, 1940 ATTRNEY Patented Sept. 1943 inppiicatio This invention relates to well pumping devices and more particularly to a device of that 'character fofremovably conne'ting a well pumping red line with a power transmission mechanism in such a manneras to hook-off? the red line and well relative to the power predeterminedly,

the principal object of the present invention being to provide a convenient; I relatively economical and highly' efiicient-device for the noted purpose." Other objects of the present invention are to ;provide"foradjusting the device to hookofithe' well at'a predetermined fluid level in the well; to provide for efiiciently operating a number of wells byfl' singlexpower'at the same time; to prevent damage-to wells and pumping equipment therefor; to provide for" deviation of movement of fthe power and rod line without injur ing the fhook-ofi devicepand to provide improved elements (and arrangements of them in a well pumping deViQe ofthischaracter. 1.In acoomplishingtheseand other objects of the present-'"inventionlr have provided improved details of 's'tructure the. preferred form of which is illustrated the accompanying drawing, wherein: P; V in i 5 1 i Fig, 1 is a sideelevational view of awell pumping device embodying the features of the present invention.

Fig.2 is a longitudinal vertical cross section throughmyimproved well pumping device showing the arrangement-for unhooking arod line relati've to atpowe'r. a A a Fig. 3 is a transverse vertical cross-section throughthedevice, illustrated in Figs. 1 and 2, substantiallyo'n the1ine 3 3,Figi2. Fig. 4 is a de'tailside elevational view..of: a latching device, the-"same being shown inoperative position relative to an associated latching device'on a-rod linew v. v Fig. 5 is a transverse section taken on the line 5-5;

Fig. fizisa fragm'entaryuplan. view partly in horizontal section of the hook end oi-uthe well IOilliIlS; .1 5 Z i 1 Referring more'iri'detailto'thedrawingz a I -generally designates a w ellfi'pumplng device which preferably includes a post 2 that may, for convenience, take the form of a pipe section embedded and suitably anchored in the ground near a power transmission mechanism; not shown.* 5 The post is preferably verticallyarranged and is provided with alignedslots 3S and 4, the post pref-erablybelng braced at oppo'slte sides of the slots by struts 5, substantially as shown.

' G- designa't'es a -bar that forms apart of a c preferably-flared i .4. I a, i 0n the drop stnoirer of the bar, i. e.,; to the right relative tdFigslandr i the reds, are under -tension;unti1' such time-as the usual well pump 'pl'ung'er hits. fluidvin-sthe well, at which time fslac'k is roducedfin the rod line, and, aided by thefweight A l, the, bar Bmivots-abouttheroller V -25 tollower' the weighted portionthereoi and Lraise the rear portionthefeoLthe boss and foot meme-emeconsequently heing liited relative to lthe wei-gl it. i i V a .-1 when ml or other liquid in the well being pumped is reducedto arelatively low level, tenpumping red line; said bar is connected at one end by; at -coupling with a conventionalrod line 8 leading to pumping devices in a welL-not shown, the othere'nd of the-bar being provided with .a head 9 having a socket ll] 'thereimforireceiving the tongue I l -of' a 'clevisi 121.:Th socketilfl .is

Jat' its outer end rmuow .lateral swinging movement of the elevisundriri control o-f a' pivot pin I3 extending. vthrough saligned apertures in the-head! andclevis tongue. ll'r'ee spectively, thepinQIJeing pivotally securedvin' the head-by a nut. 14 I 'The'clevis is alsoprovided witma slot; lite receive a hook i6 'orthe like that is 'connected with a suitable power transmission mechanism,

not shown.

Mounted on the hair Between I the i post 2 and rod line 8 is a weight l'i or theilike, the Weight bei ng adjustable longitudinally son the. bar, as by'the set screw ..i8, ;relativeito alstopflcollar .19 fixed to the bar'lfi .betweenttl'le post Z'Landjhead '9; the stop collarhavin'g la depending foot-memher 20 the inner. face ioiiwhich, reiativeflto the post, forms a shoulderitl. I v i i i ment'with the'lslots therein, the standard having a yoke at itsupper end; the lspaced; arms 23 of the bar when it is moved in one directionby the -hook= 16 upon actuation oi the; power and in the other 'directionr'by the ,weight: ;of rods'to pump J On the power orliits-trokefloi the-bar B, i. e., to the left relatireto- Eigs.- 1; and 2, the rods as' e uncler tension and are maintained in the same snbstantiallyhorizontal ;plane,; as shown in sion is applied to the rod line throughout the ztdesignates a standard: arrancaadj nl the post: on the 1 rod. line side thereof in alignas and when it becomes exhausted. In effecting the latter desideratum, th'epostf 2 is preferably provided with a bracket se-'-' cured as by fastening deviceslZl to the postza'nd having a slot 28 aligned with the slots 3 and 4. in

the posts toprovide for passing the bar 6. The 3 lower endfof the bracket, consists of a guide 29 extendinglaterally of the post in parallelrelation toqthe bar.. rIntheangle between the bracket proper and guide, an arcuately shaped blockguide 30 is .arrangedand a-guide slot 3| islongi tudinallyarranged in the guide 29.

' A- slide-block .32, of. less length than'the;1slot 3.|,:'"is. slidably mounted in. the slot 3!, the slide;

for example, some distance away from a particular exhausted well and it is, therefore, further, desirable that the exhausted well be hooked-off 1 block having arms 33 and 34 on its upper end slidably mountedon .the upperv face of the guide '29. The slide-block is normally maintained in retractedv condition, as shown. in Fig. 1, by a spring 35,0ne end of which bears against the min and the other end of which is mounted in a recess 36, the outer enlarged portion 31 of which recess also receives the end of the arm 34, when the spring is compressed.

38 and 39 designate pairs of links pivotally mounted at their lower ends on the slide-block 32 and'attheir upper endson a knock-oif-or .hojok-ofi block 40, 'as'by pivot pins 4|, the upper faceofwhich block 40 is grooved, as at 42, to forma bearing seat. for the bar 6.

A latching device 43 ismounted in a recess 44 "of the slideeblock 32 as bypivoting an arm 45 thereof on-a pivot pin 46 arranged transversely of 'the recess in the slide-block, the latching device normally tending torock forwardly, or 'tothe right, Fig. 2, and downwardly, and being controlled inits downward movement by a nose 4'! thereon which bears on the slide-block. A shoe 48' is-rnounted' on the latching device, as by a fastening device -49, and-projects upwardly therefrom substantially into the path of the foot member 29 on the stop collar l9 and bar 6.

- The operation of-a well pumping device oon- I structed as described is as follows: Assuming the well to have accumulated. liquid therein-and the-bar 6 to be hooked on-tothe power by the hook IS, the power is energized. and imparts apower stroke (to the left, Figs. 1 .and 2) to the rod' line-8 to maintain. the @same in taut, tense and-plane condition.v The'foot-member 29- on the bar 6 strikes the shoe 48 on the slide-block latching device, but passes over the same due to pivotal movement of the latch. 5 On the down stroke'(to the right, Figs. 1 and -2) the well pump plunger strikes liquid in the well, normally before the drop stroke is comstroke-approaches completion before the fkick is applied to the foot-member and, depending somewhat upon the position of the weight I l, the foot-member contacts the latch shoe and moves the slide-block forwardly against tension of the spring 35,

As the slide-block .moves forwardly, the "knock-off block rides up the arcuate faced the guide 36 into supporting relation to the bar and in line with the collar ilton the bar, thus halting movement of the (rod-line in the direction of the well. Thepower continues, however, and continued movement of the hook H5 in the direction of the well causes the hook to drop, by

.j'gravityfthrough the slot in the clevis, to hookofiithatwell, yet allowing continued pumping of .other'wells.

When it is desired to again hook-on the well,

the; power isa ainactuated and whenthe hook I 5 is positioned below the clevis slot it may be moved upwardly into engagement with t again .h k.- on. the welta .I fi npar n iatherefore, tha a co v n ent. relatively economical and. highly eflicierrtfl-well pumping mechanism 7 is .pmvided by the present invention. 6

- .What we claimand desirjejto secure by letters line :causes deflection thereof varying with the tension applied thereto, stop means, an abut.-

- mentadjacent the .rodline, means actuated; by

the: rod line upon predeterminedwvariation be; tween the deflections thereot j occurring during the respective motions toward the 'well pumping 'mechanismfor moving thestoprm'eans into engagement with the rod 1ine,,,and abutments-for stopping motion of the rod line and effecting disengagement of the rod mechanisms.

' 2..In a device; of meant-eta les crib.ed,-a

reciprocable rod line, means supporting :the rod line-whereby weight of the trod line ecauses deflection thereof, power,.means.; connected to; one end of the rod line, load meansconnected to the other end of said rod line whichiappliestension :thereto variable 'with said load, saidgpower and load means effecting intermittent motion of the rod line in their'respe'ctive .directions,i'a ,block,

means slidablysupporting. the block, and means actuated by. the red line upon apredetermined variation between thev deflections thereof occur.-

ring during the respective motions of :thefirod line toward the, load means for moving the block into position to stop movementcf theg rod line onedirection and effecting disenga ement ofthe rod linefrom the power means.

3. In a device of the character described-'11. reciprocable rod line,.means supporting ,the rod iline v.whereby; weight got the rodgline causes ;de :flection thereof, means. connected to the respec- 'tive ends of the rod .line for reciprocating, said rod line, and intermittently; applying pulling force pleted, and produces slack in the rod line. which;,

aided bythe weight' IT on the bar, .kicks? the "foot-member 20 over latch shoe 48 on the drop to therespective ends thereof, said'defiection of the -rod,line -Va rying with the pulling force act- ,ing on the :rod line, means onthe rod line jor increasing deflection thereof, and means tuated by the rod linellpon predetermined vane tionsjbetween the deflections thereoij occurring the clevis I line from one of: the

during the respective motions thereof toward one of the pulling means for efiecting disengagement of the red line from one of the means applying force thereto.

4. In a device of the character, described, a

rod line, means supporting the rod line whereby weight of the red line causesdeflection thereof,

means connected to the respective ends of the rod line for reciprocating said rod line and intermittently applying pulling force to the respective ends thereto, said deflection of therod line varying with the pulling force acting on the rod line, a, block, means slidably supporting the block, an abutment in the path of the block, and -means on the block engageable with the rod line when the deflection of the rod line varies a predetermined amount whereby the block is moved into engagement with the abutment and rod line for stopping movement of the rod line in one direction.

GEORGE w.

WILLIAM L. KIMSEY. 

